<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        #d1{
            width: 600px;
            height: 200px;
            border: 10px double lawngreen ;
            border-radius: 200px;

        }
        #d2{
            width: 100px;
            height: 100px;
            border: 1px solid red;
            padding-left: 50px;
            padding-top: 100px;
            box-sizing: border-box;
        }
    </style>

</head>
<body>
<div id="d1">

</div>
<div id="d2">
    内边距
</div>
</body>
</html>